Submarine spar-net shield.



S. B. W. WlLLlS. SUBMARNE SPAR NET SHIELD.

APPLICATION FILED )UNI-223, 1917.

l 5,260,842'. n Patented Mar. 2G, 1918.

.To all fwwm may concern:

in known met me, @Mmm B. WILLIS unal WILLMM En "W ooth citizens of theUnierl and residents' or" the city of New Yok, honour/:hl of Monhnmn, inthe county and Smic of New York, have nvent ed a and rnproved SubmarineSpar- 'Net Shclrl, of which the following is a full, clear, exact.description..

Among; the principal objects which the pesen', invention has in vew-ance: to pro-I vde obsrucons which may be placed. in *bhe palh ei" ,anattacking' submmne; to prevent ille submarine following in che Wake ol'an escaping vensel; to protect the vessel from torpedo attack; toprovide means for pfcvenng torpedoes strkin the hull of a. vessel when''ne attack is dxrectef against the brouflsde of scifi vessel; and toprovide safety devices which :Liter being used for the attainment. ofthe prmay obgects, may be need trapo for Submarines.

Demo/ings.

`1Figure l. is a clagra'mmatic View employe fol showing the method ofoperatng'wsh shields constructed in accordance Will the presentinvention;

Fig. 2 is a. side View of-n shield constructed and arranged inaccordance with the present invention;

Fig. 3 is n top plan View of the same.

'ncce to the ple-ico 8 and is constructed; of 'any @unable material suchas llghi; metal fonce 11i. The bem 14 are united at the bois tom 53o aspreader l5, which han pivotally nsmclxccl Hnefeto series of .weghn l1'.As ndicn'efl, @le Weights 11 are gagged to regnlate inc submerslon ofthe spor 9. Ylhe nel;

is nmnnneol in zs ombspread relation by curve shel platee i6. The plates3.6 are curved as shown bes; in Fig. 3 of the draw inge, anzi one lexblyheld' by lines l17', 18 and 363. The lines l@ me attached to fthe enneci? @ne 9 nnd in En snpl einladend.

por?, the n best in @y f if sgoms nn: to may be carafe@ When the thesparc om @usp the oroodsiileol the on by Suitable lince a: l

In the event f mede ngninsl; if qu leasen?. 'mi of the oncoxn lnpredice. V meclntely cin dotted line teun soon ,y spew and. net Y Shouldizlnc nu le or in o. zigzag com. having nifnfel submarine., :1. secr isdropped. @one second com in o the ship? and. end of the ship. The Sininin running now lyez'nn beve been lm l proviefl on which lle t he we@alla o un "mnnefl en im come.. No einem., 'iaf'nc'n @hind s@ in imweefsel, fzrfinn v placed so cned. @me m enemigo?. x-lzo n. an ennemis Wl lh of U opposze eide. 'J @more e 1 amine in compelle n? on 'Widening aiff ammo@ nnc'l spare Wllxsx 10E Munchen in As nach shield plantes ifspare "io enlend v net camcil 'h to the coman o..

If the attack is suspended Iand the Spar nets be undisturbed, it isevident that the nets l() hangingvr below the Surface et the Water t0 adeeired depth otler nn entanglement to submarines which may be operatingin the vicinity where Suid nets have been placed.

Claim.

A shield :is elmi'aeterizei'l euml-)rising u Spar lient; ilnlmet memberssuspended therefrom; means im' n'mintnining .said men'ihez's \'er-ticnlldiepof'eil. Smid means embodying :t

taining the spread relation 0f said net, said means embodyingil'xelilried shield platesflexihly connected with the lower edge ni saidnet and Supported by said. spar lient. SAIVUEL B. WILLS. WILLIA. M G.WILLTS.

